function disabletext(e){
return false
}

function reEnable(){
return true
}

//if the browser is IE4+
document.onselectstart=new Function ("return false")

//if the browser is NS6
if (window.sidebar){
document.onmousedown=disabletext
document.onclick=reEnable
}
function ValidarEspacio(e){
		key = e.keyCode ? e.keyCode : e.which;
		if (key == 32) {return false;}
}	 